DQ Herculis

Orbital: 0.19362 d = 4.65 hr = 16729 s, from optical eclipses.
Tmin = HEJD 2434954.94429(8) + 0.1936208964(12)E
(Zhang et al. 1995, who also give a quadratic version).
Spin: 8.2252e-02 day = 1.18 min = 71.066 s, seen in optical photometry.
Tmax = HEJD 2439628.77177(3) + 8.22518320(3)e-04 E - 2.62(4)e-16 E^2 + 2.8(1)e-24 E^3
(Zhang et al. 1995). The 71 s period has long been thought to be the spin period, but Zhang et al. 1995 prsents strong (but indirect) evidence that the true spin period is twice this value.
Others:

Inclination:

~90 deg (deep eclipse, front half of disk is probably hidden)

Distance:

525+/-28 pc (Vaytet, O'Brien & Rushton 2007; see also Herbig & Smak 1992, who obtained 561+/-19 pc)

References

We will not even attempt to compile a complete list of pre-1980 papers that deal exclusively with the classical nova event of 1934; see the Bode and Evans book on Classical Novae for that.

Please send your comments, suggestions etc. to Koji.Mukai@nasa.gov and/or Koji.Mukai@umbc.edu

National Aeronautics and Space Administration

Goddard Space Flight Center

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DQ Herculis = Nova Herculis 1934

References